Draft-equalizer.



A. V. BURKE.

DRAFT EQUALIZEB...: APPLICATION FILED MAY 25, 1908. RENEWED APR. 22, 1909.

938,637. Patented Nov.2, 1909.

2 sums-simm- 1.

Patented Nov. 2, 1909.

2 SHEETS-SHEET 2.

' lll August V.Bumke ANDREW. a. mum

all whom it may concern:

Be it known that I, AUGUST V. BURKE, a tizen of the United States, residing at reeley Center, in the county of Greeley, tate of Nebraska, have invented certain ew and useful Improvements in Draftqualizers; and I do hereby declare the folwing to be a full, clear, and exact descripon of the invention, such as will enable hers skilled in the art. to which it apper- 11115 to make and use the same.

This invention relates to draft equalizers, 1d more particularly to that class which designed to be employed in connection ith a cultivator or like implement and one f the primary objects of the invention is to rovide a draft equalizer of such construcon that it may be readily applied and adisted to any ordinary form of implement f the class mentioned or of a similar type r class.

Another feature of the invention resides 1 the provision of means for relieving the eoviice of strain to as great a degree as pos 1 e.

Broadly speaking, the device is in the naire of a frame which is adjustably but 'gidly fixed upon the frame of the impleent and upon the tongue thereof, a block pon the tongue provided with a concave de face, a draft bar pivoted upon the rame, and a roller carried by the draft bar nd working against the said concave side ace of the block.

In the accompanying drawings, Figure 1 a top plan view of the draft equalizer emodying my invention showing its applicaon to the front end of an ordinary cultiator frame, the frame being shown in light nes, Fig. 2 is a front elevation thereof, Fig.

is a side elevation, and, Fig. 1 is a vertical ransverse sectional view taken in a line with he line ofextent of the draft bar.

In the drawings, the frame of the cultiator is shown as being made up of the usual ide sills which are indicated by the numeral and the front end cross sill which is indiated by the numeral 6, the said front end f the frame being supported by'the usual heels 7.

The tongue of the cultivator is indicated y the numeral 8 and as is clearly shown in be top plan View of the drawings, projects orwardly beyond the front end cross-sill 6 n the usual manner.

The frame of the draft equalizer embody- Specification of Letters Patent.

Application filed May 25, 1908, Serial No. 434,789.

UNITED STATES PATENT OFFHEE.

AUGUST V. BURKE, 0F GREELEY CENTER NEBRASKA.

DRAFT-EQUALIZER.

Patented Nov. 2, 1909.

Renewed April 22, 1909. Serial No. 491,604.

ing my invention is comprised of several bars which are connected to form a frame of triangular form and one of these bars, which is indicated by the numeral 9, is pivoted at one of its ends as at 10 to the left hand corner of the frame of the cultivator and extends diagonally rearwarclly from the said corner and transversely of the frame, the said bar being braced with respect to the front end cross sill 6 of the cultivator frame by means of a brace 11 which is in the nature of a bar provided with a number of openings 12, adjacent each end, there being bolts 13 passed through the bar 9 and the front end cross sill 6 and interchangeably through the openings 12 so as to adjustably hold the bar 9 rigid with respect to the said front end cross sill 6.

Pivoted at its rear end to the rear or inner end of the bar 9 is a pair of bars 13 and these bars extend forwardly, one above and the other below the front end cross sill 6 and forwardly therebeyond and pivoted between the forward end of the said bars 13 is the forward end of a rod 14 the rear end of this rod being connected pivotally to the bolt which connects the outer end of the bar 9 with the left hand corner of the frame, there being preferably a turn buckle 15 interposed in the length of the rod 14; so that it may be adjusted as regards length, it being understood that adjustment of this bar as regards its length and adjustment of the bar 9 to extend at various angles with respect to the front end cross sill 6, adapt the frame for application to almost any ordinary form of cultivator frame and consequently renders the draft equalizer practically universal in its application. I

Pivoted as at 16 to the bars 13 and extending beneath the tongue 8 of the cultivator is a draft bar 17, there being a swingletree 18 carried by the draft bar to one side of the tongue and a double-tree 19 carried by the draft bar to the other side of the tongue and there being also swingle-trees 20 carried by the said double-tree 19 at the ends thereof it being understood that in this manner, the draft connection for two horses to one side of the tongue and one horse to the other side of the tongue is provided for. A block 21 is rigidly secured upon the tongue at one side thereof and this block is formed with a concave side face 22 which is presented laterally from the tongue and against which works the roller 23 which is journaled upon the draft bar 17 at a predetermined distance from the pivot 16 of the said draft bar, it being understood that upon swinging of the draft bar upon its pivot this roller 28 will travel over the said concave face of the block.

From the foregoing description of my invention, it will be seen and understood that the'frame of the equalizer is rigid with respect to the frame of the cultivator or other implements to which the equalizer is ap; plied and that it may be adjusted with respect to the said frame and the tongue projecting therefrom so as to bring the roller 23 against the concave face of the block 21, any strain brought to bear upon the frame of the equalizer resulting in the said roller being forced more securely against the block, the strain being in this manner counteracted.

l/Vhat is claimed is:

1. In a draft equalizer, the combination with a tongue and a support from which the tongue projects, of a frame fixed upon the support and tongue, a concave block fixed upon the tongue, a draft bar pivoted upon the frame, and a roller carried by the draft bar and working against the block.

2. In a draft equalizer, the combination with a tongue and a support from which the tongue projects, of a frame fixed upon the support and tongue, a draft bar pivoted upon the frame, a roller carried by the draft bar, and an element upon the tongue against which the roller Works. 7

3. In a draft equalizer, the combination with a tongue and a support from which the tongue projects, of a frame fixed upon the support and tongue, a concave block fixed upon the tongue at one side thereof and having its concaved side presented laterally, a draft bar pivoted upon the frame, and a roller carried by the draft bar to one side of its pivot and working against the concave side face of the block.

4. In a draft equalizer, the combination with a tongue and a support from which the tongue projects, of a frame fixed upon the support and tongue, said frame comprising a bar pivoted at one end to one corner of the support and extending diagonally there across, a brace adj ustably connecting the bar and the support, a bar pivoted to the other end of the first mentioned bar and extending forwardly beyond the support, adjustable connection between the said corner of the support and the extreme forward end of the last mentioned bar, a draft bar pivoted to the last mentioned bar, a block upon the tongue, and a roller 'journaled upon the draft bar and working against the block.

In testimony whereof, I affix my signature, in presence of two witnesses.

, AUGUST V. BURKE.

Vitnesses J O. NELSON, C. P. V. BURKE. 

